Adjusting Track Tension on CAT D3 Dozer

   / Adjusting Track Tension on CAT D3 Dozer #1  

ultrarunner

Epic Contributor
Joined
Apr 6, 2004
Messages
28,859
Location
SF Bay Area-Ca Olympia WA Salzburg Austria
Tractor
Cat D3, Deere 110 TLB, Kubota BX23 and L3800 and RTV900 with restored 1948 Deere M, 1949 Farmall Cub, 1953 Ford Jubliee and 1957 Ford 740 Row Crop, Craftsman Mower, Deere 350C Dozer 50 assorted vehicles from 1905 to 2006
I've owned my D3 for 14 years and last Saturday I decided to tighten the tracks in addition to my annual change the oil, fluids and once over check...

The manual has a one line sentence with a picture showing 1.5 to 2" deflection between the front sprocket and mid mount idler. I may have gone too tight using the grease gun adjustment to tighten the track on one side.

I get different deflection rates depending on if I was going forward, reverse or using the brakes...

How bad is too little deflection and how should the tracks be set to get an accurate measurement?
 

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